Chapter Exam

Chapter 13: Biodiversity and its Conservation — Online MCQ Test

Q: The term biodiversity was popularised by:

Answer: B. Edward Wilson — Edward Wilson, the sociobiologist, popularised the term biodiversity. He described biodiversity as the combined diversity at all levels of biological organisation.

Q: The Western Ghats have a greater number of amphibian species than the Eastern Ghats. This is an example of:

Answer: B. Species diversity — Species diversity is the variety of species in a given region. Comparing amphibian species richness in two regions represents species diversity.

Q: Which option correctly matches the conservation method with its example?

Answer: C. In situ conservation - biosphere reserve — A biosphere reserve conserves organisms in their natural habitat, so it is an in situ method. Botanical gardens and seed banks are ex situ methods.

Q: According to Robert May's global estimate discussed in NCERT, the total number of species on Earth is closest to:

Answer: B. 7 million — Robert May estimated that the global number of species is about 7 million. This estimate is much higher than the number of species formally described.

BIOLOGY · Grade 12 · CBSE(NCERT)

Practice Chapter 13: Biodiversity and its Conservation with a free chapter-wise online MCQ test for CBSE(NCERT) Grade 12 BIOLOGY. This chapter covers: Biodiversity Species Diversity Genetic Diversity Ecosystem Diversity Conservation In Situ Conservation Ex Situ Conservation Biosphere Reserve National Park Wildlife Sanctuary Seed.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 13: Biodiversity and its Conservation — Important Questions & Answers (FAQ)

Frequently asked questions from CBSE(NCERT) Grade 12 BIOLOGY — Chapter 13: Biodiversity and its Conservation, with answers and explanations. These are sample questions; the exam has its own separate question set.

Biodiversity refers to the:

A. Variety of life forms and their interactions at all levels ✓
B. Number of only plant species in an area
C. Number of only animal species in a forest
D. Uniformity of organisms in an ecosystem

Answer: A. Variety of life forms and their interactions at all levels
Biodiversity includes the variety of living organisms at genetic, species and ecosystem levels. It also includes their ecological roles and interactions.

The term biodiversity was popularised by:

A. Charles Darwin
B. Edward Wilson ✓
C. Robert May
D. Alexander von Humboldt

Answer: B. Edward Wilson
Edward Wilson, the sociobiologist, popularised the term biodiversity. He described biodiversity as the combined diversity at all levels of biological organisation.

The Western Ghats have a greater number of amphibian species than the Eastern Ghats. This is an example of:

A. Genetic diversity
B. Species diversity ✓
C. Molecular diversity
D. Artificial selection

Answer: B. Species diversity
Species diversity is the variety of species in a given region. Comparing amphibian species richness in two regions represents species diversity.

Which option correctly matches the conservation method with its example?

A. In situ conservation - botanical garden
B. Ex situ conservation - national park
C. In situ conservation - biosphere reserve ✓
D. Ex situ conservation - sacred grove

Answer: C. In situ conservation - biosphere reserve
A biosphere reserve conserves organisms in their natural habitat, so it is an in situ method. Botanical gardens and seed banks are ex situ methods.

According to Robert May's global estimate discussed in NCERT, the total number of species on Earth is closest to:

A. 70,000
B. 7 million ✓
C. 17,000
D. 700 million

Answer: B. 7 million
Robert May estimated that the global number of species is about 7 million. This estimate is much higher than the number of species formally described.